Pond, now 81, lives in Montana, and still remembers how ideal the location is.

"You come over the hill there, and there's that gas station right on the corner. It was perfect," said Pond. "Especially when they first put the copper roof on, it glowed! Of course, then we treated it to turn it green."

Annie Dugan has to know a lot about the gas station, since she directs the Carlton County Historical Society.

She says that triangle canopy creates an arrow, which directs your eyes across the street toward the St. Louis River. That was subliminal, she says: It was Wright's way of connecting the past with the present, with river traffic to vehicular traffic.

“As long as you have a dynamic design, it doesn't matter if you're doing a house, a gas station or a cathedral.”

Art professor Jennifer Webb, quoting Frank Lloyd Wright

Dugan also says cars can easily move around in the space. But what you see now is not what was first designed.

"Originally the pumps were going to come directly from the ceiling, so you'd pull it down like a shower," she said.

"[Wright] talks about mother's milk and coming up to the udders and feeding your car from this, which I think is a glorious image," added Jennifer Webb, an art history professor at the University of Minnesota, Duluth

Webb will be part of a panel discussion about Wright and the station on Thursday.

"Wright talks about -- as long as you have a dynamic design, it doesn't matter if you're doing a house, a gas station or a cathedral," Webb said. "And he makes that point over and over again."

The garage repair area allows for four cars to be worked on at a time. It also includes skylights that let in natural light.

Frank Lloyd WrightPhoto by Al Ravenna, courtesy of the Library of Congress

But the station's biggest draw, and arguably its biggest failure, is a glassed-in waiting room on the second floor. It's also triangular and looks out over the pumps and riverfront.

Webb says Wright included a waiting room because he had a larger vision: The gas station was to be part of a planned community called Broadacre. Wright made models of Broadacre, but this gas station is one of the only pieces ever built.

"He imagined that all of us would come in and we'd spend time together here, because it would be a social center, a cultural center," said Webb.

Think of it as a coffee shop with the smell of gas. But Dugan says the use of the waiting room never materialized.

Historical perspectiveMPR Photo/Tom Weber

"People just don't want to sit around and wait. There's plenty of other things to do," said Dugan. "There's shopping. It's certainly a central locale, but it's just not done."

Owner John McKinney says it's a testament to Wright's design that the building still serves as a gas station. It's been abused for 50 years, from mechanics dropping heavy car parts, to drivers misjudging the space and hitting the building with their campers.

"We're proud that our grandfather and parents were interested enough in architecture to have something like this built," McKinney said. "At the same time we've always been a little ashamed, because it takes so much money to keep this thing up. Every time you turn around, it's $20,000 for this and $20,000 for that."

McKinney put money into the building this summer to spruce it up for this week's celebration, but says he's not sure how long it can remain privately owned.

Webb and Dugan say there appears to be enough community support to find a way to keep the gas station standing, even if it stops being a gas station.

And for all the people who have visited the gas station and will in the future, there's one notable who never did: Frank Lloyd Wright himself. He was too busy on the Guggenheim at the time, and died a few months later.